NoticeDifference between revisions of "RASPBERRY PI LCD1602 ADD-ON"
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Revision as of 06:26, 21 May 2014
Contents
Overview
Raspberry PI LCD1602 Add-on is customized for Raspberry Pi interfaces based on LCD1602 display module. With GPIO’s on Raspberry Pi, it can be used to control the contents to be displayed; with software, it can be used to control the backlight for on and off. Buttons on the module can be used to control cursor location on the screen. In addition, electronic brick interface can bring more expanded functions for the Raspberry Pi.
Specifications
| PCB size | 83.8mm X 68.6mm X 1.6mm |
| Input voltage | 5V |
| Interface | Electronic brick interface |
| Contrast | Adjustable |
Hardware
Pinmap
Raspberry PI Interfaces
| Raspberry PI Pin N.O. | Pin name | Pin of LCD1602 Module | Description |
| 11 | GPIO0 | D4 | LCD1602 data cable |
| 12 | GPIO1 | D5 | LCD1602 data cable |
| 13 | GPIO2 | D6 | LCD1602 data cable |
| 15 | GPIO3 | D7 | LCD1602 data cable |
| 16 | GPIO4 | RS | Register selection cable |
| 18 | GPIO5 | E | Enable |
| 22 | GPIO6 | BLK control | Backlight control pin(1) |
| 7 | GPIO7 | - | Electronic brick interface |
| 3 | SDA0 | - | Electronic brick interface |
| 5 | SCL0 | - | Electronic brick interface |
| 24 | CE0 | LEFT BUTTON | Button output pin(2) |
| 26 | CE1 | UP BUTTON | Button output pin(2) |
| 19 | MOSI | DOWN BUTTON | Button output pin(2) |
| 21 | MISO | RIGHT BUTTON | Button output pin(2) |
| 23 | SCLK | SELECT BUTTON | Button output pin(2) |
| 8 | TXD | - | Electronic brick interface |
| 10 | RXD | - | Electronic brick interface |
| 2 | +5V | - | |
| 1 | +3.3V | - | |
| 6 | GND | - |
(1)Backlight control pin: When GPIO6 outputs low level, backlight of LCD1602 is off.
(2)Button output pin: When the button is pressed down, it outputs low level; otherwise it outputs high level.
Contrast
- Contrast
Contrast of the screen can be adjusted by rotating the potentiometer.
